Freight-handling equipment for motor trucks



J. B. M DEVITT FREIGHT HANDLING EQUIPMENT FOR MOTOR TRUCKS May 31, 1927. 1,630,398

Filed Jan 21, 19 26 2 Sheets-Sheet 1 May 31, 1927. I 1,630,398

r J. B. MCDEVITT FREIGHT HANDLING EQUIPMENT FOR MOTOR TRUCKS Filed Jan. 21, 1926 2 Sheets-Sheet 2 Attorney Patented May 31, 19271.

' ear sat} JAMES ivr nnvr'r'r, OF UHnIoHsvILLn'oHIo.

FREIGHT-HANDLING EQUIPMENT ro'a MOTOR ravens.

Application filed January 21-, 1926 .Srial No. 82,764.

1 and efiicient equipment, operable by the env tion taken in the plane indicated by the line gine of the truck, and adapted to be used to advantage in handling freight incldent 'to the loading and the unloading of the truck.

To the attainment of the foregoing, the

ber and sphned or feathered and endwise invention consists in the improvementas hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification 1 Figure 1 is a side elevation of amotor truck equipped with the preferred GIIlbOCll-i ment of my invention. a

Figure 2 is an enlarged detail cross-sec- 2-2 of Figure 1, looking rearwardly.

Figure 3 is a fragmentary section, on an enlarged scale, taken in'the plane indicated by the line 3-7-3 of Figure 2. v

Figure 4 is an enlarged detail section showing one of the brakes comprised in my improvement. 7

Similar numerals of reference designate corresponding parts in all of the views of the drawings. V p In general the motor truck 1 is of conventional construction or of any other construetion compatible with the purposes of my invention,'and its dump body 2 is hingedly mounted on the frame orchassis 3 at the roller 5 being designed for the passagethereover of the cable 6 when it is desired to use the cable 6 and the draft means connected therewith for the drawing of a heavy load to a point adjacent to the body 2. As shown the cable 6Iis connected at one end 7 f to the forward end of the body 2 and is passed over asheave S on a fixed upright 9 so that power means hereinafter described 1n detail. may

be utilized for the'raising of the forward endot the body 2'and the putting of the said body 2 into dumpingposition. Of

course, when the cable'6 is to be used for the wardly throughthe rear end of the body 2 which will be open or else' will be' provided with a removable tail gate. The opposite end of the cable 6 is connectedto and adapted to be wound upon a drum 10'disposed longie tudinally of the motor truck. The said drum 10 is mounted in appropriate bearings on the truck frame, and is fixed with respect to a worm gear 11 which is meshed with a worm 12 on a transverse shaft 13. The said i worm12 is loose on the shaft 13, and has one 7 of its ends 14: shaped to ,form a clutch memmovable onthe shaft 13 is a complementary clutchmember15.v This latter is provided with a circumferentially grooved portion 16" for the engagement of a fork or arm 17 on a transversely movable rod 18 the said rod 18 being, connected at 19 to. the rear arm ofa horizontally swinging lever '20, Figure. 1,

the forward arm of the said lever '20 being" connected with thelower arm of an upright,

transversely swingable cam lever21. .Thus' I by manipulating the lever 21 an attendant combustion engine ofthe motor truck 1, and F at 31 is a shaft disposed longitudinally of. the motortruck and connected with theshaft through the medium'of'the sprocket gears and belt illustrated-or any otherappropriate" driving connection.- I

Journaled in appropriate bearings 40. on I the truck 1 is an upright rock shaft 41 which is provided with an appropriately trufl'ed lateral arm 42 and is adapted to be used as a crane. The said crane 42 is'swingable in a Y/ horizontalplane and is equipped at its outer endwith a sheave 43 over which is traineda cable 44:, the said cable 44 being connected" at one end 45 to the crane and having a.

pulley block 16 in its biglit, and being trained not only over the sheave 43 but also. over a sheave 47 above the post or rock shaft 41,

and after being passed-over the'said' shafts? the said cable 44; is carried downwardly and is connected to and adapted to betaken up on and let'oif adrum 48, said drum 48 being disposed at right .anglesto thebefore men tioned drum 1Q. IFixedwith respect togthe drum 48 isfa'spurgear 49, and meshed with said spur gear 49, is a spur gear 50 that is i v loose on the shaft 13 and has its inner end shaped toeform a clutch member 51.-

The said clutch member 51 is opposed to the correspondingly shaped end ofthe before men tioned clutch member and consequently it will be understood that when the member 15 is shifted through the medium of the means before described into engagement with the clutch member of the gear 50, the

gear itl and the "drum 4:8 will'be rotated. I a The shaft 13 is provided at with a miter gear best shown inFigure 3. Extending at right angles to'the shaft 13 is a shaft 61, and

tinted on said shaft 61 is a sprocket gear 62, connected through a sprocket belt 63 with a sprocket gear 64 on a shaft 65, the said'shaft 65 having fixed thereto a worm 66 that is I meshed wit-h a worm gear, 67 fixed toran'd surrounding the, before mentioned crane shaft or'rrock, shaft- 41. Thus when vthe shaft 65 is rotated, the upright shaft, or post- 41 will be rocked about its axis for the swinging 'of' the overhanging arn'i 42 winch is manifestly well'ada pted to facilitate the I "transfer of a heavy load to and from the body 2. In this connection itwill be noted that 1n Figure 1. the overhanging arm ofthe cra'neis located longitudinally of the props and abovethe body 2, and in Figure 2' thesaid arm of the crane is positioned at. right angles to the props or in laterally extendingjposition relative thereto;

Fixed to the rear end of the shaft 31 is a initer gear TO, and'loose on the shaft 61 are miter gears 71 meshed with the sand gear 70." The" said gears 71 are provided with clutchin'1embers--72 which are arranged at opposite sides 'ofia slidable clutch member .78, thelatter being splined on the shaft '61 end'being provided with ends complemen- 'taryjto the clutch members 7 2. The clutch member 73 is also provided with a circumferentially grooved portion 74 for the en- 40 gagement .ofa yoke 75 in connection with a. rod 76* extending. from a handy lever 77 through the m'ediu1n of which the clutch member 73 ma be shifted according to the 1 direction of 'i'vhich it is desired to turn the upright shaft or post 411 of the crane. Manifestlyiwhen the clutch member- 73 is in new tral position the] interm-eshed worm '66 and ;worm gear 67 will stronglvhold the post 41 and the crane against swinging movement. 'Shaftsj13 and 13 are connected together through the medium of mtermeshed' miter gears as clearly shown in Figure 1, themiter gear on the shaft 13 being designated by 8th and the-miter gear on the shaft 31 being designated by 81; I 7 The shafts-'13 and 1.3? are equipped with appropriate manually controlled brakes 90,

"Figure 2; eachof thesaid brakes being made 11p of a pulley 91 fixed to the shaft, a band surrounding the said pulley, a red 92 for scope of my appendedclaim. I e

l invention, what "I gear meshed with the thirdine and upright shaft fonmanenvc contracting 'the said band and 'brakingthe shaft, and a spring- '93'qfor expanding the band when'it is desired to release the shaft;

It will be apparent from the' foregoing that .my improvement is'adapted to materially faeilitate thectransfer of freight'to and from the body 2 of the truck, andthat the mechanism comprised in the nnprovement is simple and compact-and is suscep tible of being easily controlled-by the truck driver. 7 e V 7 While I prefer the con strnction and r'ela tive arrangement of the elen'ients disclosed".

in the present and preferred embodiment of my invention 1 do not (lGSlIQiO be understood asconfining myself to the precise con struction and relative arrangement of parts i iasmuch as in the future practice of injy invention modifications in the strue ire and m'arran 'ementmay be" made within the,

Having describe 7 claim and desire to secure by'Letters-Patent,

'is:- V a a a A power transn'iission means foroperating a crane and hoisting mechanism and avehi'ole dumping mechanism' from an engine including, in combination, a drive shaft driven by the engine and having; a gear'at its end. a driven shaftfformed' transversely to the drive shaft andhaving a gear meshed with the first gear-fa worm loose on said drive shaft, said worm having an end portion constituting; theclntch member, a clutch member 'spline'd on said shaft-,'a third shaft alined with the second shaft ainlliaving a gear on 1tS,O11l'1 1)01t1011 and another gear on its inner portion and "also having a clutch member in opposed relation to s id splined n ,h avinp; I a

clutch member, hoisting dri oned gear,

a crane,

a worm gear fix edlto said npright shaft, a?

versible driving connection manually controlled and interposed between the third shaft and the last mentionedwornna dunr 7 inn; drum havingsaid first mentioned we and means for nember into en n 'm'en'iber on the hoit sot/hat the crane may he manenve ed. In testimony-whereof'1 afiix my 7 "Jaime n. MeDEvIT-fi". f

worm (gear meshed with v -worm meshing with said: worm gear, a re- 1 ill) 

